I dont see anything wrong with the command... but as yousay you executed something similar, I would suggest you give us more information like the output of
and the exact command line you passed with its output...
Hi,
could someone pls enlighten me on the difference between the "root" package and "usr" package?
Like in this example:
pkginfo -l SUNWGtku | grep -i desc
DESC: GTK - The GIMP Toolkit (Usr)
and
pkginfo -l SUNWGtkr | grep -i desc
DESC: GTK - The GIMP Toolkit (Root)... (6 Replies)
Hi,
I am facing a strange issue,
when i call a script from my while loop in background it doesnt go in background, despite the wait i put below the whil loop it goes forward even before the process put in background is completed.
cat abc.txt | while read -u4 line
do
#if line contains #... (2 Replies)
Hi Folks,
As per the subject, the following command is not working as expected.
echo $variable | mail -s "subject" "xxx@xxx.com"
Could anyone figure it out whats wrong with this. I am using AIX box.
Regards, (2 Replies)
The system don't boot.
on the screen appears following:
press enter to maintenance (or type CTRL-D to continue)...I checked with format command.
... the slices "0-root","1-swap","2-backup" exist.
...the slises "3-var","6-usr" -unassigned. :( (16 Replies)
I came across and unexpected behavior with redirections in tcsh. I know, csh is not best for redirections, but I'd like to understand what is happening here.
I have following script (called out_to_streams.csh):
#!/bin/tcsh -f
echo Redirected to STDOUT > /dev/stdout
echo Redirected to... (2 Replies)
I use below code to get ip, and I want to echo something in the function, but the $IP will be all the value from "echo" I just want to get the real ip, and keep the echo info, any help
#!/bin/bash
get_ip()
{
ip=$(grep -B2 "00:01:02:03:04:05" ip_tmp.log |head -1 |awk '{print $2}')
... (4 Replies)
Hi, everyone.
I need to write a program to get io info based on libperfstat.
But the "write time" of a disk is just half of the value get from iostat.
I'm confused and can't explain. Help please.
How I calculate "write service time per sec":
In iostat:
write service... (0 Replies)
Dear Concern,
We have observed that following command stuck/does not work in some RedHat nodes. Please advise us to troubleshoot the issue.
/usr/sbin/hpacucli ctrl all show
Note: HP Array Configuration Utility CLI for Linux 64-bit
With Best Regards,
Md. Abdullah-Al Kauser (3 Replies)
I'm on Ubuntu 14.04 and I manually updated my coreutils so that "tee" is now on version 8.27
I was running a script using bash where there is some write to pipe error at some point causing the tee command to exit abruptly while the script continues to run. The newer version of tee seems to prevent... (2 Replies)
Discussion started by: stompadon
2 Replies
LEARN ABOUT PHP
system
SYSTEM(3) 1 SYSTEM(3)system - Execute an external program and display the outputSYNOPSIS
string system (string $command, [int &$return_var])
DESCRIPTION system(3) is just like the C version of the function in that it executes the given $command and outputs the result.
The system(3) call also tries to automatically flush the web server's output buffer after each line of output if PHP is running as a
server module.
If you need to execute a command and have all the data from the command passed directly back without any interference, use the passthru(3)
function.
PARAMETERS
o $command
- The command that will be executed.
o $return_var
- If the $return_var argument is present, then the return status of the executed command will be written to this variable.
RETURN VALUES
Returns the last line of the command output on success, and FALSE on failure.
EXAMPLES
Example #1
system(3) example
<?php
echo '<pre>';
// Outputs all the result of shellcommand "ls", and returns
// the last output line into $last_line. Stores the return value
// of the shell command in $retval.
$last_line = system('ls', $retval);
// Printing additional info
echo '
</pre>
<hr />Last line of the output: ' . $last_line . '
<hr />Return value: ' . $retval;
?>
NOTES
Warning
When allowing user-supplied data to be passed to this function, use escapeshellarg(3) or escapeshellcmd(3) to ensure that users can-
not trick the system into executing arbitrary commands.
Note
If a program is started with this function, in order for it to continue running in the background, the output of the program must be
redirected to a file or another output stream. Failing to do so will cause PHP to hang until the execution of the program ends.
Note
When safe mode is enabled, you can only execute files within the safe_mode_exec_dir. For practical reasons, it is currently not
allowed to have .. components in the path to the executable.
Warning
With safe mode enabled, the command string is escaped with escapeshellcmd(3). Thus, echo y | echo x becomes echo y | echo x.
SEE ALSO exec(3), passthru(3), popen(3), escapeshellcmd(3), pcntl_exec(3), backtick operator.
PHP Documentation Group SYSTEM(3)